Win a copy of Java Database Connections & Transactions (e-book only) this week in the JDBC forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Devaka Cooray
  • Knute Snortum
  • Paul Clapham
  • Tim Cooke
Sheriffs:
  • Liutauras Vilda
  • Jeanne Boyarsky
  • Bear Bibeault
Saloon Keepers:
  • Tim Moores
  • Stephan van Hulst
  • Ron McLeod
  • Piet Souris
  • Frits Walraven
Bartenders:
  • Ganesh Patekar
  • Tim Holloway
  • salvin francis

32 v/s 64 bit  RSS feed

 
Bartender
Posts: 11445
18
Android Eclipse IDE Google Web Toolkit Java Mac Ubuntu
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I was reading Jeanne's post at http://www.selikoff.net/2011/06/26/eclipse-3-7-on-the-new-mac-8-good-features-1-bad-my-plugin-list/ which took me to http://osxdaily.com/2009/09/07/how-to-tell-if-youre-running-the-32-bit-or-64-bit-kernel-in-mac-os-x-snow-leopard/

I got Snow Leopard on my Mac book. So I ran the uname -a and got the 32 bit. I also confirmed it in Mac->About this Mac->More info->Software. The 64-bit Kernel and Extensions is set to No
I tried rebooting holding down 6 and 4. No change.

1) Should I even bother about this? Would I get any noticable performance benefits if I did?
2) All this time I have been downloading and using the 64 bit versions (e.g. Eclipse) How come they are working?
3) If I let it be, would I ever run into problems running any apps? Are there any apps which run only on 64 bit?
4) If you got Snow Leopard, which kernel version does it show?
 
ranger
Posts: 17344
11
IntelliJ IDE Mac Spring
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator

Maneesh Godbole wrote:I was reading Jeanne's post at http://www.selikoff.net/2011/06/26/eclipse-3-7-on-the-new-mac-8-good-features-1-bad-my-plugin-list/ which took me to http://osxdaily.com/2009/09/07/how-to-tell-if-youre-running-the-32-bit-or-64-bit-kernel-in-mac-os-x-snow-leopard/

I got Snow Leopard on my Mac book. So I ran the uname -a and got the 32 bit. I also confirmed it in Mac->About this Mac->More info->Software. The 64-bit Kernel and Extensions is set to No
I tried rebooting holding down 6 and 4. No change.

1) Should I even bother about this? Would I get any noticable performance benefits if I did?
2) All this time I have been downloading and using the 64 bit versions (e.g. Eclipse) How come they are working?
3) If I let it be, would I ever run into problems running any apps? Are there any apps which run only on 64 bit?
4) If you got Snow Leopard, which kernel version does it show?



In the second link it has comments answering your actual questions.

A 64 bit app can run in 32 bit kernels. Just runs like it was the 32 bit version.

I have Snow Leopard running the 32 bit version.

Mark
 
Maneesh Godbole
Bartender
Posts: 11445
18
Android Eclipse IDE Google Web Toolkit Java Mac Ubuntu
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks Mark. I missed out on that one.
 
Java Cowboy
Posts: 16084
88
Android IntelliJ IDE Java Scala Spring
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I've read that OS X Lion is 64-bit only. It will not run on older Macs that have a 32-bit only CPU (for example, older MacBooks with a Core Duo instead of a Core 2 Duo CPU).
 
Let me tell you a story about a man named Jed. He made this tiny ad:
how do I do my own kindle-like thing - without amazon
https://coderanch.com/t/711421/engineering/kindle-amazon
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!